1 /***
2 * @(#)OSCacheServiceImpl.java
3 *
4 * JFoxSOAF, Service-Oriented Application Framework
5 *
6 * Copyright(c) JFoxSOAF Team
7 *
8 * Licensed under the GNU LGPL, Version 2.1 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 * http://www.gnu.org/copyleft/lesser.html
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 *
20 * For more information, please visit:
21 * http://www.jfox.cn/confluence/display/JFoxSOAF/Home
22 * http://www.huihoo.org/jfox/jfoxsoaf
23 */
24
25 package org.huihoo.jfox.soaf.services.cache;
26
27 import org.huihoo.jfox.soaf.exception.CacheServiceException;
28
29 import com.opensymphony.oscache.base.NeedsRefreshException;
30 import com.opensymphony.oscache.general.GeneralCacheAdministrator;
31
32 /***
33 * <p>
34 * Support for OpenSymphony OSCache
35 * </p>
36 *
37 * @author <a href="mailto:founder_chen@yahoo.com.cn">Peter Cheng </a>
38 * @author <a href="mailto:m.bogaert@intrasoft.be">Mathias Bogaert </a>
39 * @version $Revision: 1.1 $ $Date: 2005/05/22 06:48:52 $
40 * @version Revision: 1.0
41 */
42
43 public class OSCacheServiceImpl implements CacheService {
44
45 private GeneralCacheAdministrator cache = new GeneralCacheAdministrator();
46
47 private int refreshPeriod;
48
49 private String cron;
50
51 /***
52 * Default constructor with given param
53 *
54 * @param refreshPeriod
55 * @param cron
56 */
57 public OSCacheServiceImpl(int refreshPeriod, String cron) {
58 this.refreshPeriod = refreshPeriod;
59 this.cron = cron;
60 }
61
62 /***
63 * @see org.huihoo.jfox.soaf.services.cache.CacheService#get(java.lang.Object)
64 */
65 public Object get(Object key) throws CacheServiceException {
66 try {
67 return cache.getFromCache(String.valueOf(key), refreshPeriod, cron);
68 } catch (NeedsRefreshException e) {
69 cache.cancelUpdate(String.valueOf(key));
70 return null;
71 }
72 }
73
74 /***
75 * @see org.huihoo.jfox.soaf.services.cache.CacheService#put(java.lang.Object,
76 * java.lang.Object)
77 */
78 public void put(Object key, Object value) throws CacheServiceException {
79 cache.putInCache(String.valueOf(key), value);
80 }
81
82 /***
83 * @see org.huihoo.jfox.soaf.services.cache.CacheService#remove(java.lang.Object)
84 */
85 public void remove(Object key) throws CacheServiceException {
86 cache.flushEntry(String.valueOf(key));
87 }
88
89 /***
90 * @see org.huihoo.jfox.soaf.services.cache.CacheService#clear()
91 */
92 public void clear() throws CacheServiceException {
93 cache.flushAll();
94 }
95
96 /***
97 * Set cache capacity
98 *
99 * @param cacheCapacity
100 */
101 public void setCacheCapacity(int cacheCapacity) {
102 cache.setCacheCapacity(cacheCapacity);
103 }
104
105 }